30 lines
1.0 KiB
Haskell
30 lines
1.0 KiB
Haskell
{- This Source Code Form is subject to the terms of the Mozilla Public License,
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v. 2.0. If a copy of the MPL was not distributed with this file, You can
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obtain one at https://mozilla.org/MPL/2.0/. -}
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{-# LANGUAGE OverloadedStrings #-}
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{-# LANGUAGE RecordWildCards #-}
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module Graphics.Fountainhead.Metrics
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( FontMetrics(..)
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, afmFontMetrics
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) where
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import qualified Data.Text.Lazy.Builder as Text.Builder
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import Data.Version (Version(..), showVersion)
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import Graphics.Fountainhead.Type (newlineBuilder)
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newtype FontMetrics = FontMetrics
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{ version :: Version
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} deriving (Eq, Show)
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afmKeyString :: Text.Builder.Builder -> String -> Text.Builder.Builder
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afmKeyString key value = key <> Text.Builder.singleton '\t'
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<> Text.Builder.fromString value <> newlineBuilder
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afmFontMetrics :: FontMetrics -> Text.Builder.Builder
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afmFontMetrics FontMetrics{..}
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= afmKeyString "StartFontMetrics" (showVersion version)
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<> afmKeyString "Comment" "Generated by Fountainhead"
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<> "EndFontMetrics" <> newlineBuilder
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